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Geography of Population - Distribution, Structure, Dynamics, and Politics

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Western University
Geography 1400F/G
Godwin Arku

Jan 30 12 Geography of PopulationDistribution Structure Dynamics and Politics The statistical study of human population is called demographyFrom the Greek demos populace people and graphie to write about Population geography is the study of the spatial components of demography spatial patternvariationWorld Population Growth thThe 20 century is the century of population explosion The UN says there are now 7 billion people on earth Around 1950 the population started growing as a massively increased rate The most striking feature is the overwhelming growth in developing countries while the growth in developed countries has remained relatively stable Developed nations build their populations mostly through immigrantsWorld population grows by 200000 people a day Some predict that later in the century population will fall dramatically due to differing fertility ratesWorld Population Distribution Very uneven distribution pattern Some land areas are almost uninhabited Other areas are sparsely settled Many show very dense agglomerationNearly half of the world population are urbanites 82 in Canada causes problems because you need many resources Almost 90 of people live north of the equator mostly due to the fact that there is much less landmass below the equator A large portion occupy small land surface 90 on less then 20 of the land Majority of population congregate at lowland areas easier building warmer oxygen issues farming issues Continental margins have the largest concentration of people access to water Most clustered areas are East Asia 25 of population South Asia 21 Europe 12 Northeastern United States and South East Canada 10 Distribution in Canada thDistribution of Canadas population has 70 of people south of the 49 parallel Ecumenehabitable areas of the landscapeNonecumenenonhabitable areas of the landscape the north because of the climateenvironment Population of 31 million as of 2006 Highly unevenly distributedPopulation Density The numerical measure of the relationship between the number of people and some other unit of interest expressed as a ratio Crude Density Number of people per unit of land Divide total population by land arealand available per person Important because it can show you where most people are living and how much land they can have Can also be a way of measuring the human pressure on the land and environmentCan give the wrong impression that every land area can be used because it used total land Physiological Density Number of people per unit area of arable land Deals only with usable land or habitable areas Difficult to assess if the land is arable or not Includes all people Agricultural Density Number of nonurban population per unit area of arable land
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